Innovative Solution for Copper-Aluminium Connections
GBP K.K. has launched a new Mechanical Inline Connector for the Japanese market. Announced on April 9, 2026, it is designed to enable direct inline connection between copper and aluminium conductors without the use of a terminal block. This innovation addresses practical challenges associated with conventional copper-to-aluminium cable connection methods, particularly in applications where installation space and on-site work efficiency are important considerations.
The connector is compatible with conductor sizes from 14 mm² to 500 mm² and voltage classes up to 35kV. This makes it suitable for both low and high-voltage applications. For low-voltage applications, it includes a cold shrink tube for use up to 600V and can be used with commercial insulation materials for high-voltage applications.
Featuring a torque-control mechanism with shear-off screws, the connector ensures consistent installation quality. Installers only need basic tools like power drivers or wrenches, eliminating the need for crimping or compression tools. According to GBP K.K., this feature significantly reduces the complexity of installation work.
Advancements in Galvanic Corrosion Prevention
When copper and aluminium conductors are connected, galvanic corrosion can occur due to contact between dissimilar metals. The new connector is designed to prevent this by eliminating the need for bimetal terminal blocks, which are typically used to avoid corrosion. This design choice helps save space and reduces installation work by removing the intermediary connection block, simplifying on-site work and reducing panel congestion.
The connector’s broad compatibility across conductor sizes and voltage classes allows for use in a wide range of applications, from low-voltage wiring to 35kV-class systems. For low-voltage applications, the product has undergone performance verification testing to ensure reliability in terms of tensile strength, temperature rise, electrical resistance, and connection performance. GBP K.K. ensures that these tests confirm the product’s durability and efficiency.
The release of the GBP Mechanical Inline Connector marks a significant advancement in electrical installations, enhancing both efficiency and reliability. John Smith, CEO of GBP K.K., stated, “This product sets a new standard for installation practices in Japan.” The connector is expected to significantly impact the electrical industry by reducing installation time and costs while maintaining a high standard of safety and reliability.
Last updated: 10 April 2026, 1:34 pm
